한국수산과학회

ISSN NUMBER

  • pISSN : 2234-8395
  • |
  • eISSN : 2234-1757

Open Access Journal

UTIL MENU



SEARCH FOR ARTICLE

검색

kfas, vol. 53, no. 1, pp.1-8, February, 2020
DOI. https://doi.org/10.5657/KFAS.2020.0001

Maturation and Spawning of Largehead Hairtail Trichiurus japonicus
Near Jeju Island, Korea
한국 제주도 주변해역에 서식하는 갈치(Trichiurus japonicus)의 산란 생태

김한주*·박정호·권대현·김영혜
국립수산과학원 기반연구부 연근해자원과

The reproductive biology of largehead hairtail Trichiurus japonicus, from near Jeju Island, Korea was investigated
based on 4,384 individuals collected by commercial vessel from November 2016 to October 2019. There were more
female specimens than male specimens (2.64:1). T. japonicus preanal lengths (PL) ranged from 10.5 to 53.5 cm; the
relationships between PL and body weight (BW) were BW=0.0103PL3.1293 for females and BW=0.0106PL3.1251 for
males. Monthly changes in gonadosomatic index were analyzed to estimate spawning season. The spawning period
ranged from June to November. The size-frequency distribution of eggs suggested that T. japonicus exhibits multiplespawning
during a spawning period. The minimum size of females at maturity was 18.2 cm, while the size at sexual
maturity was 25.0 cm.

Keyword : Trichiurus japonicus, Reproduction, Spawning season, Size at sexual maturity

Download :


Copyrightⓒ 2014 The Korean Society of Fisheries and Aquatic Science
All Rights Reserved.

Editorial Office Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 608-737, Korea TEL : 82.51.629.7363 | FAX : 82.51.626.1039 | E-mail : kosfas@naver.com